{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L476ZGT6U","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L476ZGT6U","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L476ZGT6U","factsUrl":"https://icboms.com/api/mcp/products/STM32L476ZGT6U","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series, ARM Cortex-M4 32-Bit Single-Core MCU, 80MHz, 1MB (1M x 8) FLASH, 128K x 8 RAM, 114 I/O, 144-LQFP (20x20), -40°C ~ 85°C, 1.71V ~ 3.6V.","salesMarkdown":"## What the 80 MHz Cortex-M4 and 1 MB Flash mean for your firmware architecture The STM32L476ZGT6U: The 1 MB Flash and 128 KB SRAM support an RTOS, TCP/IP stack, and graphics frame buffer without external memory. ## Peripheral set and I/O count — sizing the BOM for sensor-rich designs With 114 GPIOs and a peripheral list that includes CAN, USB OTG, QSPI, SAI, multiple UART/USART, I2C, and SPI, this MCU can handle a display, external Flash, an audio codec, and a CAN bus interface without a companion CPLD or port expander. ## Package and footprint — layout considerations for the 144-LQFP The 144-LQFP (20x20 mm) is a standard high-I/O package with 0.5 mm pitch. The exposed pad (if present on this variant) should be stitched to ground with thermal vias for adequate heat dissipation, especially if the core runs sustained DSP workloads near 80 MHz. The 114 GPIOs require careful signal routing to avoid crosstalk on dense boards.","metaTitle":"STM32L476ZGT6U ARM Cortex-M4 MCU, 80 MHz, 1 MB Flash","metaDescription":"STMicroelectronics STM32L476ZGT6U 32-bit ARM Cortex-M4 MCU, 80 MHz core, 1 MB Flash, 128 KB SRAM, 114 I/O, 144-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Grade":"-","Speed":"80MHz","Series":"STM32L4","Package":"Tray","RAM Size":"128K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, LCD, PWM, WDT","Connectivity":"CANbus, EBI/EMI, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"114","Qualification":"-","Core Processor":"ARM® Cortex®-M4","Package / Case":"144-LQFP","Product Status":"Active","Data Converters":"A/D 24x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L476","Program Memory Size":"1MB (1M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"144-LQFP (20x20)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e4f865ae4830d5c8c1c745b3072c2e8e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L476ZGT6U/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32L476ZGT6U?","answer":"Within the STM32L4 series, the STM32L476VG is a pin-compatible sibling with the same 144-LQFP footprint and peripheral set, but with 1 MB Flash and 128 KB SRAM. The STM32L4R5ZGI6 offers higher core frequency and more SRAM but in a different package — verify pin compatibility against your layout before substituting."},{"question":"What is the listed speed of STM32L476ZGT6U?","answer":"The maximum CPU clock frequency is 80 MHz. At this speed the Flash requires zero wait states for most code; for sustained 80 MHz operation, configure one wait state in the Flash access control register."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L476ZGT6U","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L476ZGT6U when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}